Clamp-On Vortex Flowmeter
Page Features:
- Space-saving installation
- No installation orientation restrictions
- Lower cost
- Instantaneous + cumulative measurement
- Ideal for steam system retrofitting
Product Overview:
The clamp-on vortex flowmeter is designed based on the Karman vortex principle for measuring the volumetric or mass flow of gases, steam, compressed air, or liquids. It features low pressure loss, wide measurement range, and high accuracy. The measurement of volumetric flow under operating conditions is nearly unaffected by fluid density, pressure, temperature, or viscosity. With no moving mechanical parts, it ensures high reliability and minimal maintenance. Rated IP68, it is suitable for outdoor pipeline systems. The instrument maintains long-term stability and operates within a temperature range of -20°C to +350°C. It provides analog standard signals and digital pulse outputs for easy integration with digital systems like computers.
Performance Features:
- Full stainless steel corrosion-resistant material and ABS mold-produced probe for simplicity.
- Detection sensor does not directly contact the medium, ensuring stable performance and long lifespan.
- Pulse signal output proportional to flow rate, with zero drift elimination and high accuracy.
- Low pressure loss reduces operating costs and enhances energy efficiency.
- Measures volumetric and mass flow of steam, gas, and liquids.
- Supports amplifier-sensor separation (up to 15m).
- Anti-interference circuits and vibration-resistant sensor head for stability in vibrating environments.
- Wide rangeability (10:1 to 40:1) with minimal pressure loss.
- Handles media temperatures up to +350°C.
- No mechanical moving parts, ensuring long-term stability and easy installation/maintenance.
- Pulse frequency output linearly correlates with actual flow rate, with zero drift and exceptional stability.
- RS-485 or HART communication for factory automation and integration.
Technical Parameters
| Parameter | Specifications |
| Measurement Range | Liquid: 0.35–7.0 m/s Gas: 5.0–60.0 m/s Steam: 6.0–70.0 m/s |
| Applicable Media | General gases, saturated steam, superheated steam, compressed air, general liquids |
| Nominal Diameter | DN15–300mm (flanged/clamp-on) DN250–1800mm (insertion type) |
| Accuracy Class | ±0.5%FS, ±1.0%FS, ±1.5%FS, ±2.5%FS |
| Repeatability Error | ±0.5% of measured value |
| Rangeability | 8:1, 10:1, 15:1 |
| Display | Wide-screen LCD with password protection Instantaneous/cumulative flow Percentage/frequency Units: m³/h, kg/h, t/h, Hz |
| Operating Temperature | – Standard: -40°C to +130°C High-temperature: -40°C to +350°C Explosion-proof: -40°C to +80°C |
| Damping Adjustment | 0–50 s |
| Operating Pressure | 1.6MPa, 2.5MPa, 4.0MPa (customizable) |
| Housing Material | Stainless steel, cast aluminum alloy |
| Straight Pipe Requirements | Inlet: 15×DN Outlet: 5×DN |
| Signal Output | 4–20mA, pulse, RS-485 (MODBUS), HART |
| Power Supply | Pulse: 12V/24V DC Two-wire 4–20mA: 24V DC (with HART) Built-in 3.6V lithium battery (2+ years) |
| Electrical Connection | M20×1.5 terminal |
| Connection Type | Flange (national standard), clamp-on, internal/external thread |
| Protection Rating | IP65 (IP67 optional) |
| Ambient Temperature | Explosion-proof: -30°C to +60°C Non-explosion-proof: -40°C to +85°C Sensor: -40°C to +80°C Converter: -15°C to +60°C |
| Relative Humidity | 5%–95% |
| Explosion-proof Rating | ExdIICT5 |
| Power Consumption | <20W |
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